Xiamen ZhiCheng Automation Technology Co., Ltd
"Precision Engineered, Globally Trusted – Innovating Automation Control & Modular Excellence."
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The Allen-Bradley 1794-TB3T Terminal Base Unit is a rugged interface module for Rockwell Automation’s FLEX I/O™ system, designed to streamline wiring and enhance reliability in industrial environments. Featuring patented push-lock spring terminals, this DIN-rail-mountable base eliminates screw tightening and enables tool-less wiring (0.5–2.5mm² / 20–14 AWG). Its high-impact polyamide housing achieves IP66/IP68 protection against dust, high-pressure washdowns, and submersion, while operating across **–25°C to +70°C**. Compatible with all 1794-series I/O modules (digital, analog, specialty), it reduces installation time by 75% and prevents wiring errors with color-coded channels.
Robust interconnectivity metrics:
High-intensity industrial wiring:
Operational superiorities:
Advanced wiring management:
| Parameter | Value/Specification |
|---|---|
| Product Type | FLEX I/O Thermocouple Input Module |
| Catalog Number | 1794-TB3T |
| Input Channels | 3 channels |
| Input Type | Thermocouple (TC): J, K, T, E, R, S, B, C, N |
| Voltage Input Range | ±80 mV (for direct mV input) |
| Resolution | 16-bit (0.015°C for TC, 1.25 µV for mV) |
| Accuracy | ±1°C (±1.8°F) for thermocouples; ±0.1% of full scale for voltage |
| Update Rate | 50 ms per channel |
| Cold Junction Compensation | Integrated per channel (±1°C accuracy) |
| Isolation | Channel-to-channel: None (group isolation) Channel-to-bus: 250V AC continuous |
| Common-Mode Rejection | >100 dB at 50/60 Hz |
| Normal-Mode Rejection | >90 dB at 50/60 Hz |
| Power Requirements | 24V DC (20-30V DC) via FLEX I/O bus (max 85 mA) |
| Operating Temperature | -20°C to 60°C (-4°F to 140°F) |
| Storage Temperature | -40°C to 85°C (-40°F to 185°F) |
| Humidity | 5-95% non-condensing |
| Dimensions (H x W x D) | 87 mm x 35 mm x 80 mm (3.4 x 1.4 x 3.1 in) |
| Weight | 150 g (0.33 lb) |
| Mounting | FLEX I/O terminal base (1794-TB3, -TB3S, -TBN) |
| Certifications | CE, cULus, ATEX Zone 2 (optional), IECEx, RoHS |
| Compatibility | 1794 FLEX I/O system; ControlLogix, CompactLogix, PLC-5, SLC 500 via 1794-ADN adapter |
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Company Information
Xiamen ZhiCheng Automation Technology Co., Ltdit is a leading global supplier of control system components. We specialize in control systems and drives.
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With many years of experience in the industrial sector, we consistently deliver the highest quality of spare parts.which make sure that all this jobs are
perfectly.
we are major in PLC,Sensors,HIM,Transmitters.
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